100(2+r)=500

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Solution for 100(2+r)=500 equation: 


Simplifying
100(2 + r) = 500
(2 * 100 + r * 100) = 500
(200 + 100r) = 500

Solving
200 + 100r = 500

Solving for variable 'r'.

Move all terms containing r to the left, all other terms to the right.

Add '-200' to each side of the equation.
200 + -200 + 100r = 500 + -200

Combine like terms: 200 + -200 = 0
0 + 100r = 500 + -200
100r = 500 + -200

Combine like terms: 500 + -200 = 300
100r = 300

Divide each side by '100'.
r = 3

Simplifying
r = 3

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